DarkHotel (or Darkhotel) is a targeted campaign that appears to be selectively attacking business hotel visitors through the hotel's in-house WiFi network. It is characterized by Kaspersky Lab as an advanced persistent threat.
Targets are aimed primarily at executives in investments and development, government agencies, defense industries, electronic manufacturers and energy policy makers. A large number of victims have been located in Korea, China, Russia and Japan.
In July 2017, Bitdefender published new research about Inexsmar, another version of the DarkHotel malware, which was used to target political figures instead of business targets.